A previously unknown manuscript by renowned Hungarian composer Béla Bartók has been discovered at an auction in Spain. Experts have confirmed the manuscript’s authenticity, deeming it exceptionally valuable. Details regarding the manuscript’s contents and specific origins are currently unavailable. The discovery represents a significant addition to Bartók’s documented body of work. Authorities are now working to determine the manuscript’s provenance and potential acquisition for a Hungarian institution. This finding is expected to generate considerable interest among musicologists and Bartók enthusiasts worldwide. Further analysis will be conducted to fully understand the manuscript’s importance and context within Bartók’s compositional process.